The straightness of seamless steel tube has a great impact on precision machinery pipe and hydraulic cylinder pipe. The high accuracy of straightness can improve customers’ post-processing efficiency and reduce production costs. The most afraid of buying seamless steel tube is that the seamless steel pipe can not be processed, become a waste, that is, waste production costs and delay delivery, so it is very important to choose a manufacturer with quality assurance. The influencing factors of the straightness of seamless steel tube are as follows.
1. Straightening equipment is backward
The straightening equipment is backward, the straightening accuracy is not good, the straightness of the seamless steel tube has not been greatly improved, and it can only be visually detected without bending. Such a seamless steel pipe straightness requirements for precision machining industry is not up to the requirements. For example, the hydraulic cylinder has higher requirements for the straightness of the steel pipe, which needs to maintain the consistency of the inner hole. If the straightening equipment is backward, it is far from meeting the requirements.
2. Production process of seamless steel tube
Seamless steel pipe in the production process will choose two kinds of production technology, respectively, finishing rolling and cold drawing. Generally speaking, the straightness of seamless steel tube after finishing rolling will be better than that after cold drawing, because finishing rolling belongs to rolling and will not produce great elasticity to seamless steel pipe. However, in the process of cold drawing, the seamless steel tube as a whole is stretched and has great elasticity. When the seamless steel pipe is out of the drawing machine, plastic deformation will occur.
The above is the answer to the factors affecting the straightness of seamless steel tube. Straightness is an important index for precision pipes. The better the straightness, the better the finished product rate of post-processing will be. For example, hydraulic cylinder, mechanical parts and other fields have higher requirements for the straightness of seamless steel pipe.
Post time: Dec-28-2022